public void IntepretEvent(TimelineChange changeEvent)
{
switch (changeEvent.ChangeType)
{
case TypeOfChange.ADD:
ExtractADDevent(changeEvent);
break;
case TypeOfChange.DELETE:
ExtractREMOVEevent(changeEvent);
break;
case TypeOfChange.RESTORE:
ExtractRESTOREevent(changeEvent);
break;
case TypeOfChange.UPDATE:
ExtractUPDATEevent(changeEvent);
break;
case TypeOfChange.COLOR:
ExtractCOLORChangeEvent(changeEvent);
break;
}
}
static TimelineChange extractUPDATECommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange UPDATEchange = new TimelineChange();
UPDATEchange.ChangeType = TypeOfChange.UPDATE;
UPDATEchange.ChangedIdeaID = Int32.Parse(node.Attributes["NoteID"].Value, CultureInfo.InvariantCulture);
string updateType = node.Attributes["UpdateType"].Value;
if (updateType.CompareTo("POS") == 0)
{
float X = float.Parse(node.Attributes["X"].Value, CultureInfo.InvariantCulture);
float Y = float.Parse(node.Attributes["Y"].Value, CultureInfo.InvariantCulture);
System.Windows.Point p = new System.Windows.Point(X, Y);
UPDATEchange.MetaData = p;
}
else if (updateType.CompareTo("CONTENT") == 0)
{
string contentStr = node.Attributes["Content"].Value;
byte[] contentBytes = Convert.FromBase64String(contentStr);
UPDATEchange.MetaData = Utilities.UtilitiesLib.BytesToBitmap(contentBytes);
}
return(UPDATEchange);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
void ExtractCOLORChangeEvent(TimelineChange change)
{
if (COLORChangeEventExtractedHandler != null)
{
COLORChangeEventExtractedHandler(change.ChangedIdeaID, (string)change.MetaData);
}
}
void ExtractRESTOREevent(TimelineChange changeEvent)
{
GenericIdeationObjects.IdeationUnit idea = new PostItObjects.PostItNote();
idea.Id = changeEvent.ChangedIdeaID;
if (REMOVEeventExtractedHandler != null)
{
RESTOREeventExtractedHandler(idea);
}
}
public void AddDUPLICATEChange(int refFrameID)
{
TimelineChange change = new TimelineChange(TypeOfChange.DUPLICATE, refFrameID, null);
TimelineFrame frame = new TimelineFrame();
frame.Id = getNextFrameID();
frame.Change = change;
AddFrame(frame);
}
public static TimelineFrame extractTimelineFrameFromXmlNode(XmlElement node)
{
TimelineFrame frame = new TimelineFrame();
frame.Id = Int32.Parse(node.Attributes["ID"].Value, CultureInfo.InvariantCulture);
TimelineChange change = TimelineChange.extractTimelineChangeFromXmlNode((XmlElement)node.FirstChild);
frame.Change = change;
return(frame);
}
public void AddUPDATEContentChange(int updatedNoteID, object newContent)
{
if (shouldAddDUPLICATEframe())
{
AddDUPLICATEChange(_currentFrame.Id);
}
TimelineChange change = new TimelineChange(TypeOfChange.UPDATE, updatedNoteID, newContent);
TimelineFrame frame = new TimelineFrame();
frame.Id = getNextFrameID();
frame.Change = change;
AddFrame(frame);
}
public void AddCOLORChange(int noteID, string colorCode)
{
if (shouldAddDUPLICATEframe())
{
AddDUPLICATEChange(_currentFrame.Id);
}
TimelineChange change = new TimelineChange(TypeOfChange.COLOR, noteID, colorCode);
TimelineFrame frame = new TimelineFrame();
frame.Id = getNextFrameID();
frame.Change = change;
AddFrame(frame);
}
public void AddADDChange(GenericIdeationObjects.IdeationUnit addedIdea)
{
if (shouldAddDUPLICATEframe())
{
AddDUPLICATEChange(_currentFrame.Id);
}
TimelineChange change = new TimelineChange(TypeOfChange.ADD, addedIdea.Id, addedIdea.Content);
TimelineFrame frame = new TimelineFrame();
frame.Id = getNextFrameID();
frame.Change = change;
AddFrame(frame);
}
public void AddDELETEChange(int deletedIdeaID)
{
if (shouldAddDUPLICATEframe())
{
AddDUPLICATEChange(_currentFrame.Id);
}
TimelineChange change = new TimelineChange(TypeOfChange.DELETE, deletedIdeaID, null);
TimelineFrame frame = new TimelineFrame();
frame.Id = getNextFrameID();
frame.Change = change;
AddFrame(frame);
}
public void AddRESTOREChange(int restoredIdeaID)
{
if (shouldAddDUPLICATEframe())
{
AddDUPLICATEChange(_currentFrame.Id);
}
TimelineChange change = new TimelineChange(TypeOfChange.RESTORE, restoredIdeaID, null);
TimelineFrame frame = new TimelineFrame();
frame.Id = getNextFrameID();
frame.Change = change;
AddFrame(frame);
}
public void AddUPDATEPositionChange(int updaptedNoteID, double newX, double newY)
{
if (shouldAddDUPLICATEframe())
{
AddDUPLICATEChange(_currentFrame.Id);
}
System.Windows.Point newCenter = new System.Windows.Point(newX, newY);
TimelineChange change = new TimelineChange(TypeOfChange.UPDATE, updaptedNoteID, newCenter);
TimelineFrame frame = new TimelineFrame();
frame.Id = getNextFrameID();
frame.Change = change;
AddFrame(frame);
}
static TimelineChange extractDUPLICATECommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange DUPLchange = new TimelineChange();
DUPLchange.ChangeType = TypeOfChange.DUPLICATE;
DUPLchange.ChangedIdeaID = Int32.Parse(node.Attributes["RefID"].Value, CultureInfo.InvariantCulture);
return(DUPLchange);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
static TimelineChange extractCOLORCommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange COLORchange = new TimelineChange();
COLORchange.ChangeType = TypeOfChange.DELETE;
COLORchange.ChangedIdeaID = Int32.Parse(node.Attributes["NoteID"].Value, CultureInfo.InvariantCulture);
COLORchange.MetaData = node.Attributes["Color"].Value;
return(COLORchange);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
void ExtractADDevent(TimelineChange changeEvent)
{
GenericIdeationObjects.IdeationUnit idea = new PostItObjects.PostItNote();
//this is a short-term solution, in the future need to re-implemented more sustainably
if (changeEvent.MetaData is StrokeData)//this is the addition of a stroke
{
idea = new PostItObjects.StrokeBasedIdea();
}
idea.Id = changeEvent.ChangedIdeaID;
idea.CenterX = 0;
idea.CenterY = 0;
idea.Content = changeEvent.MetaData;
if (ADDeventExtractedHandler != null)
{
ADDeventExtractedHandler(idea);
}
}
static XmlElement getADDCommandXml(TimelineChange change, XmlElement parentNode)
{
/*
* Xml node structure
* <ADD NoteID=" " ContentType="[BITMAP/STROKE/GROUP]" Content=" "/>
*/
try
{
XmlElement node = parentNode.OwnerDocument.CreateElement(change.getChangeTypeString());
XmlAttribute ideaIDAttr = parentNode.OwnerDocument.CreateAttribute("NoteID");
ideaIDAttr.Value = change.ChangedIdeaID.ToString();
node.Attributes.Append(ideaIDAttr);
XmlAttribute ideaContentTypeAttr = parentNode.OwnerDocument.CreateAttribute("ContentType");
XmlAttribute ideaContentAttr = parentNode.OwnerDocument.CreateAttribute("Content");
if (change.MetaData is Bitmap)
{
ideaContentTypeAttr.Value = "BITMAP";
ideaContentAttr.Value = PostItObjects.PostItNote.getDatatStringOfIdeaContent(change.MetaData);
}
else if (change.MetaData is List <int> )
{
ideaContentAttr.Value = "GROUP";
}
else if (change.MetaData is StrokeData)
{
ideaContentTypeAttr.Value = "STROKE";
ideaContentAttr.Value = (change.MetaData as StrokeData).getStringFromStrokePoints();
XmlAttribute isErasingAttr = parentNode.OwnerDocument.CreateAttribute("IsErasing");
isErasingAttr.Value = (change.MetaData as StrokeData).getStringOfIsErasingAttribute();
node.Attributes.Append(isErasingAttr);
XmlAttribute strokeColorAttr = parentNode.OwnerDocument.CreateAttribute("Color");
strokeColorAttr.Value = (change.MetaData as StrokeData).StrokeColorCode;
node.Attributes.Append(strokeColorAttr);
}
node.Attributes.Append(ideaContentTypeAttr);
node.Attributes.Append(ideaContentAttr);
return(node);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
static XmlElement getUPDATECommandXml(TimelineChange change, XmlElement parentNode)
{
/*
* Xml structure
* if update position
* <UPDATE NoteID=" " UpdateType="POS" X=" " Y=" " />
* if update content
* <UPDATE NoteID=" " UpdateType="CONTENT" Content=" " />
*/
try
{
XmlElement node = parentNode.OwnerDocument.CreateElement(change.getChangeTypeString());
XmlAttribute ideaIDAttr = parentNode.OwnerDocument.CreateAttribute("NoteID");
ideaIDAttr.Value = change.ChangedIdeaID.ToString();
node.Attributes.Append(ideaIDAttr);
XmlAttribute updateTypeAttr = parentNode.OwnerDocument.CreateAttribute("UpdateType");
updateTypeAttr.Value = getUpdateTypeString(change.MetaData);
node.Attributes.Append(updateTypeAttr);
if (updateTypeAttr.Value.CompareTo("POS") == 0)
{
System.Windows.Point newPos = (System.Windows.Point)change.MetaData;
XmlAttribute posXAttr = parentNode.OwnerDocument.CreateAttribute("X");
posXAttr.Value = newPos.X.ToString();
node.Attributes.Append(posXAttr);
XmlAttribute posYAttr = parentNode.OwnerDocument.CreateAttribute("Y");
posYAttr.Value = newPos.Y.ToString();
node.Attributes.Append(posYAttr);
}
else if (updateTypeAttr.Value.CompareTo("CONTENT") == 0)
{
XmlAttribute contentAttr = parentNode.OwnerDocument.CreateAttribute("Content");
contentAttr.Value = PostItObjects.PostItNote.getDatatStringOfIdeaContent(change.MetaData);
node.Attributes.Append(contentAttr);
}
return(node);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
static XmlElement getDUPLICATECommandXml(TimelineChange change, XmlElement parentNode)
{
/*
* Xml structure
* <DUPLICATE RefID=" "/>
*/
try
{
XmlElement node = parentNode.OwnerDocument.CreateElement(change.getChangeTypeString());
XmlAttribute refIDAttr = parentNode.OwnerDocument.CreateAttribute("RefID");
refIDAttr.Value = change.ChangedIdeaID.ToString();
node.Attributes.Append(refIDAttr);
return(node);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
void ExtractUPDATEevent(TimelineChange changeEvent)
{
if (changeEvent.MetaData is Point)
{
if (UPDATEPosEventExtractedHandler != null)
{
Point newPos = (Point)changeEvent.MetaData;
UPDATEPosEventExtractedHandler(changeEvent.ChangedIdeaID, (float)newPos.X, (float)newPos.Y);
}
}
else
{
if (UPDATEContentEventExtractedHandler != null)
{
GenericIdeationObjects.IdeationUnit idea = new PostItObjects.PostItNote();
idea.Id = changeEvent.ChangedIdeaID;
idea.Content = changeEvent.MetaData;
UPDATEContentEventExtractedHandler(idea);
}
}
}
static TimelineChange extractADDCommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange ADDchange = new TimelineChange();
ADDchange.ChangeType = TypeOfChange.ADD;
ADDchange.ChangedIdeaID = Int32.Parse(node.Attributes["NoteID"].Value, CultureInfo.InvariantCulture);
string contentType = node.Attributes["ContentType"].Value;
string contentStr = node.Attributes["Content"].Value;
if (contentStr.CompareTo("BITMAP") == 0)
{
byte[] contentBytes = Convert.FromBase64String(contentStr);
ADDchange.MetaData = Utilities.UtilitiesLib.BytesToBitmap(contentBytes);
}
else if (contentStr.CompareTo("STROKE") == 0)
{
//ADDchange.MetaData = PostItObjects.StrokeBasedIdea.ParseContentFromString(contentStr);
StrokeData strokeData = new StrokeData();
strokeData.ParseStrokePointsFromString(contentStr);
if (node.HasAttribute("IsErasing"))
{
strokeData.ParseIsErasingFromString(node.Attributes["IsErasing"].Value);
}
if (node.HasAttribute("Color"))
{
strokeData.StrokeColorCode = node.Attributes["Color"].Value;
}
ADDchange.MetaData = strokeData;
}
else if (contentStr.CompareTo("GROUP") == 0)
{
}
return(ADDchange);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
static XmlElement getCOLORCommandXml(TimelineChange change, XmlElement parentNode)
{
/*
* Xml node structure
* <COLOR NoteID=" " Color=" "/>
*/
try
{
XmlElement node = parentNode.OwnerDocument.CreateElement(change.getChangeTypeString());
XmlAttribute ideaIDAttr = parentNode.OwnerDocument.CreateAttribute("NoteID");
ideaIDAttr.Value = change.ChangedIdeaID.ToString();
node.Attributes.Append(ideaIDAttr);
XmlAttribute colorAttr = parentNode.OwnerDocument.CreateAttribute("Color");
colorAttr.Value = (string)change.MetaData;
node.Attributes.Append(colorAttr);
return(node);
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return(null);
}
static TimelineChange extractADDCommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange ADDchange = new TimelineChange();
ADDchange.ChangeType = TypeOfChange.ADD;
ADDchange.ChangedIdeaID = Int32.Parse(node.Attributes["NoteID"].Value, CultureInfo.InvariantCulture);
string contentType = node.Attributes["ContentType"].Value;
string contentStr = node.Attributes["Content"].Value;
if (contentStr.CompareTo("BITMAP") == 0)
{
byte[] contentBytes = Convert.FromBase64String(contentStr);
ADDchange.MetaData = Utilities.UtilitiesLib.BytesToBitmap(contentBytes);
}
else if (contentStr.CompareTo("STROKE") == 0)
{
//ADDchange.MetaData = PostItObjects.StrokeBasedIdea.ParseContentFromString(contentStr);
StrokeData strokeData = new StrokeData();
strokeData.ParseStrokePointsFromString(contentStr);
if (node.HasAttribute("IsErasing"))
{
strokeData.ParseIsErasingFromString(node.Attributes["IsErasing"].Value);
}
if (node.HasAttribute("Color"))
{
strokeData.StrokeColorCode = node.Attributes["Color"].Value;
}
ADDchange.MetaData = strokeData;
}
else if (contentStr.CompareTo("GROUP") == 0)
{
}
return ADDchange;
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return null;
}
static TimelineChange extractCOLORCommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange COLORchange = new TimelineChange();
COLORchange.ChangeType = TypeOfChange.DELETE;
COLORchange.ChangedIdeaID = Int32.Parse(node.Attributes["NoteID"].Value, CultureInfo.InvariantCulture);
COLORchange.MetaData = node.Attributes["Color"].Value;
return COLORchange;
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return null;
}
static XmlElement getUPDATECommandXml(TimelineChange change, XmlElement parentNode)
{
/*
* Xml structure
* if update position
* <UPDATE NoteID=" " UpdateType="POS" X=" " Y=" " />
* if update content
* <UPDATE NoteID=" " UpdateType="CONTENT" Content=" " />
*/
try
{
XmlElement node = parentNode.OwnerDocument.CreateElement(change.getChangeTypeString());
XmlAttribute ideaIDAttr = parentNode.OwnerDocument.CreateAttribute("NoteID");
ideaIDAttr.Value = change.ChangedIdeaID.ToString();
node.Attributes.Append(ideaIDAttr);
XmlAttribute updateTypeAttr = parentNode.OwnerDocument.CreateAttribute("UpdateType");
updateTypeAttr.Value = getUpdateTypeString(change.MetaData);
node.Attributes.Append(updateTypeAttr);
if (updateTypeAttr.Value.CompareTo("POS") == 0)
{
System.Windows.Point newPos = (System.Windows.Point)change.MetaData;
XmlAttribute posXAttr = parentNode.OwnerDocument.CreateAttribute("X");
posXAttr.Value = newPos.X.ToString();
node.Attributes.Append(posXAttr);
XmlAttribute posYAttr = parentNode.OwnerDocument.CreateAttribute("Y");
posYAttr.Value = newPos.Y.ToString();
node.Attributes.Append(posYAttr);
}
else if (updateTypeAttr.Value.CompareTo("CONTENT") == 0)
{
XmlAttribute contentAttr = parentNode.OwnerDocument.CreateAttribute("Content");
contentAttr.Value = PostItObjects.PostItNote.getDatatStringOfIdeaContent(change.MetaData);
node.Attributes.Append(contentAttr);
}
return node;
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return null;
}
static XmlElement getRESTORECommandXml(TimelineChange change, XmlElement parentNode)
{
/*
* Xml node structure
* <RESTORE NoteID=" "/>
*/
try
{
XmlElement node = parentNode.OwnerDocument.CreateElement(change.getChangeTypeString());
XmlAttribute ideaIDAttr = parentNode.OwnerDocument.CreateAttribute("NoteID");
ideaIDAttr.Value = change.ChangedIdeaID.ToString();
node.Attributes.Append(ideaIDAttr);
return node;
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return null;
}
static XmlElement getADDCommandXml(TimelineChange change, XmlElement parentNode)
{
/*
* Xml node structure
* <ADD NoteID=" " ContentType="[BITMAP/STROKE/GROUP]" Content=" "/>
*/
try
{
XmlElement node = parentNode.OwnerDocument.CreateElement(change.getChangeTypeString());
XmlAttribute ideaIDAttr = parentNode.OwnerDocument.CreateAttribute("NoteID");
ideaIDAttr.Value = change.ChangedIdeaID.ToString();
node.Attributes.Append(ideaIDAttr);
XmlAttribute ideaContentTypeAttr = parentNode.OwnerDocument.CreateAttribute("ContentType");
XmlAttribute ideaContentAttr = parentNode.OwnerDocument.CreateAttribute("Content");
if (change.MetaData is Bitmap)
{
ideaContentTypeAttr.Value = "BITMAP";
ideaContentAttr.Value = PostItObjects.PostItNote.getDatatStringOfIdeaContent(change.MetaData);
}
else if (change.MetaData is List<int>)
{
ideaContentAttr.Value = "GROUP";
}
else if (change.MetaData is StrokeData)
{
ideaContentTypeAttr.Value = "STROKE";
ideaContentAttr.Value = (change.MetaData as StrokeData).getStringFromStrokePoints();
XmlAttribute isErasingAttr = parentNode.OwnerDocument.CreateAttribute("IsErasing");
isErasingAttr.Value = (change.MetaData as StrokeData).getStringOfIsErasingAttribute();
node.Attributes.Append(isErasingAttr);
XmlAttribute strokeColorAttr = parentNode.OwnerDocument.CreateAttribute("Color");
strokeColorAttr.Value = (change.MetaData as StrokeData).StrokeColorCode;
node.Attributes.Append(strokeColorAttr);
}
node.Attributes.Append(ideaContentTypeAttr);
node.Attributes.Append(ideaContentAttr);
return node;
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return null;
}
static TimelineChange extractUPDATECommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange UPDATEchange = new TimelineChange();
UPDATEchange.ChangeType = TypeOfChange.UPDATE;
UPDATEchange.ChangedIdeaID = Int32.Parse(node.Attributes["NoteID"].Value, CultureInfo.InvariantCulture);
string updateType = node.Attributes["UpdateType"].Value;
if (updateType.CompareTo("POS") == 0)
{
float X = float.Parse(node.Attributes["X"].Value, CultureInfo.InvariantCulture);
float Y = float.Parse(node.Attributes["Y"].Value, CultureInfo.InvariantCulture);
System.Windows.Point p = new System.Windows.Point(X, Y);
UPDATEchange.MetaData = p;
}
else if (updateType.CompareTo("CONTENT") == 0)
{
string contentStr = node.Attributes["Content"].Value;
byte[] contentBytes = Convert.FromBase64String(contentStr);
UPDATEchange.MetaData = Utilities.UtilitiesLib.BytesToBitmap(contentBytes);
}
return UPDATEchange;
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return null;
}
static TimelineChange extractRESTORECommandFromXmlNode(XmlElement node)
{
try
{
TimelineChange DELchange = new TimelineChange();
DELchange.ChangeType = TypeOfChange.RESTORE;
DELchange.ChangedIdeaID = Int32.Parse(node.Attributes["NoteID"].Value, CultureInfo.InvariantCulture);
return DELchange;
}
catch (Exception ex)
{
Utilities.UtilitiesLib.LogError(ex);
}
return null;
}